2015 GMC Sierra 1500 complaints

DESIGN FLAW IN CABIN AIR FILTRATION SYSTEM LEADING TO HEALTH HAZARD WITHIN THE VEHICLE. MICE HAVE ENTERED THE COWL AIR PLENUM AREA AND BUILT NESTS ON TOP OF AND OUT OF THE CABIN AIR FILTER MATERIAL. THE FILTER HAS BECOME SATURATED WITH MOUSE DANDER, FECES AND OTHER MATERIALS. EVENTUALLY THESE CONTAMINANTS WORK THEIR WAY THROUGH THE FILTER AND AN ODOR IS NOTICED INSIDE THE VEHICLE. THE MICE ARE BELIEVED TO ENTER THIS AREA THROUGH SIGNIFICANT UNSCREENED OPENINGS AT THE ENDS OF A PLASTIC COVER OVER THE PLENUM IN THE WINDSHIELD WIPER AREA UNDER THE HOOD. I HAVE CONTACTED GM WITH REGARD TO THIS DESIGN FLAW. . SO FAR, MY DEALER HAS REPAIR THE DAMAGE AND INSTALL NEW CABIN FILTERS AT MY EXPENSES . WAS TOLD BY DEALER THIS WAS NOT COVERED UNDER WARRANTY NO ATTEMPT HAS BEEN MADE TO BLOCK OR SCREEN THE OPENINGS. THE TRUCK IS REGULARLY GARAGED WITH AN OTHER NON-GM VEHICLES THAT DO NOT HAVE THIS PROBLEM. INDIVIDUALS WITH RESPIRATORY CONDITIONS SHOULD BE CONCERNED ABOUT THE SIGNIFICANT PLENUM DESIGN FLAW IN THESE GM TRUCKS.

I PURCHASED THIS VEHICLE IN JUNE OF 2015. THE HEADLIGHTS IN THIS VEHICLE ARE ABSOLUTELY TERRIBLE AND EXTREMELY UNSAFE. NIGHT TIME DRIVING IS VERY DIFFICULT AND UNNERVING BECAUSE THE HEADLIGHT PERFORMANCE IS SO POOR. IF DRIVING AT NIGHT AND IT STARTS RAINING, FORGET IT. I HAVE TAKEN THE VEHICLE TO THE DEALER A HALF DOZEN TIMES AND THEY PERFORMED 1TSB WHICH MADE ALMOST NO NOTICEABLE DIFFERENCE.

VEHICLE HAS A PULSING VIBRATION BETWEEN 45 AND 68 MPH. STARTED AT 3000 MILES. VEHICLE IS NOW AT 7500 MILES AND VIBRATION IS GETTING WORSE

HEADLIGHTS ON NEW 2015 GMC SIERRA DENALI 1500 TRUCK INADEQUATE - POOR LIGHTING PATTERN IN DARK DRIVING CONDITIONS - UNACCEPTABLE AND DANGEROUS. DEALERSHIP DENIED ISSUE, THEN STATED MANUFACTURER RECOMMENDS REDIRECTING LIGHTS DOWN TOWARD ROAD. THIS ADJUSTMENT DIDN'T RESOLVE THE DIM LIGHTING ISSUE. I SUGGESTED PAYING OUT OF POCKET TO REPLACE HEADLIGHTS - DEALERSHIP LAUGHED AND SAID THAT WOULD VOID THE WARRANTY. THESE DIM HEADLIGHTS ARE DANGEROUS.

HEADLIGHTS ARE THE WORST I'VE EVER SEEN. VERY UNSAFE TO DRIVE AND NIGHT AND EXTREMELY BAD IN THE RAIN.

THE HEADLIGHTS ON MY 2015 GMC SIERRA SLT ARE BY FAR THE WORST HEADLIGHTS I HAVE EVER EXPERIENCED IN THE MANY VEHICLES THAT I HAVE DRIVEN OVER THE LAST 30 YEARS. HOW THEY PASSED WHATEVER SAFETY STANDARDS THERE ARE SET IN PLACE IS BEYOND ME. THEY DO NOT PROVIDE A WIDE ENOUGH BEAM TO SEE AROUND TURNS OR WILDLIFE THAT MAY BE ON THE SIDE OF THE ROADWAY NOR DO THEY LIGHT UP ENOUGH OF THE ROAD IN DISTANCE TO SEE ANYTHING AT ALL BEYOND APPROXIMATELY 50 FEET WHILE TRAVELLING IN THE DARK. THIS VEHICLE IS UNSAFE TO BE DRIVEN AT ANY SPEED DURING THE DARK. SADLY THE HIGH BEAMS ARE COMPLETELY USELESS AS WELL. THERE IS MORE LIGHT OUTPUT WITH THE LOW BEAMS ON IN CONJUNCTION WITH THE FOG LIGHTS (WHICH ISN'T SAYING MUCH) THAN THERE IS WITH THE HIGH BEAMS ON. DRIVING IS THE RAIN IS EVEN WORSE. YOU CANNOT EVEN TELL THAT THE HEADLIGHTS ARE ON THAT'S HOW BAD THEY ARE. I HAVE COMPLAINED SEVERAL TIMES TO TWO DIFFERENT DEALERS AND GM DIRECTLY AND WAS TOLD "THAT'S JUST HOW THEY ARE AND THERE IS NOTHING THAT CAN BE DONE ABOUT THEM". I WAS GIVEN A 2016 SIERRA AS A LOANER VEHICLE WHILE I HAD MY VEHICLE IN FOR THIS AND SEVERAL OTHER ISSUES AND THE HEADLIGHTS ON THE 2016 VEHICLE THEY LOANED ME ARE A BIG IMPROVEMENT OVER THE 2014-15 LIGHTS. GM SHOULD BE FORCED TO RECALL ALL 2014-15 SIERRAS DUE TO THESE SEVERELY HAZARDOUS HEADLIGHTS AND FORCED TO INSTALL THE LIGHTS THAT COME ON THE 2016-17 SIERRAS.

FIRST OF ALL THE HEADLIGHTS ARE VERY DIM AND AT NIGHT CANNOT SEE NOTHING.DEALER SAID IT IS WHAT IS .VERY BAD !! ALSO MY SIERRA ON WINDOW STICKER STATES COMES WITH ALL TERRAIN TIRES IT DOES NOT HAVE ALL TERRAIN TIRES . THEY ARE 265/65/R18 GOODYEAR WRANGLER SRA .I WORKED FOR GOODYEAR AND THOSE TIRES ARE ALL SEASON !!! NOT ALL TERRAIN AS SPECIFIED ON WINDOW STICKER !! I TALKED TO DEALER AND CALLED CUSTOMER SERVICE AT GM THEY NEVER CALL BACK AND THEY SAID THOSE ARE THE RIGHT TIRES.THEY ARE NOT ACCORDING TO MY ATTORNEY WHO STATES THE WINDOW STICKER IS TOTALLY INCORRECT AND IS FRAUDULENT CHECK YOUR TIRES AND WINDOW STICKERS AND COMPARE AND LOOK ON GOODYEARS WEBSITE YOU WILL SEE.ALSO MY TRANSMISSION CLUNKS AND KNOCKS AND SHIFTS INCORRECTLY DEALER STATES ITS NORMAL I SPEND 40K ON A NEW TRUCK AND ALL I HAVE ARE PROBLEMS AND GM DOES NOTHING. IT DOWNSHIFTS HORRIBLE WHAT CAN I DO???

WITHIN ONE YEAR OF PURCHASING THIS VEHICLE, AND OCCURRING NUMEROUS TIMES OVER THE COURSE OF 15,000 MILES, THIS VEHICLE SUDDENLY AND WITHOUT WARNING COMPLETELY LOST CONTROL IN WET CONDITIONS. VEHICLE WAS ALWAYS OPERATED WITH ALL SAFETY MECHANISMS INCLUDING TRACTION CONTROL ON. VEHICLE WAS ALWAYS OPERATED AT OR BELOW THE POSTED SPEED LIMITS AND WELL BELOW SPEED LIMITS IN WET CONDITIONS. ACCELERATING FROM A STOP AND TURNING ONTO ROADS EITHER FROM A STOP SIGN OR RED LIGHT, THE VEHICLE REPEATEDLY SPUN 90 TO 180 DEGREES FOR NO REASON. THE VEHICLE ALSO ON SEVERAL OCCASIONS COMPLETELY LOST CONTROL LATERALLY AND SLID SIDEWAYS AS IF ON ICE; SOMETIMES IN TRAFFIC AND FORTUNATELY NO DAMAGE OR INJURY OCCURRING. VEHICLE HAS BEEN TO THE DEALER WITH TIRES AND SUSPENSION FOUND TO BE WITHIN LIMITS. SINCE NO INDIVIDUAL COMPONENT WAS DEFECTIVE EITHER THE VEHICLE, TIRES, OR THE COMBINATION MUST BE INTRINSICALLY UNSAFE. GM CUSTOMER CARE WAS CONTACTED AND CASE [XXX] OPENED. GM WILL NOT PERFORM ANY ACTION OR REPLACE TIRES SINCE THEY CANNOT DUPLICATE THE LOSS OF CONTROL ON DRY ROADS. GM'S OFFICIAL RESPONSE TO ME WAS TO TAKE THE VEHICLE TO THE DEALER DURING A RAIN STORM AND WITH ONE OF THEIR TECHS IN THE VEHICLE, I WAS TO REPLICATE MY PROBLEM FOR THEM TO WITNESS. GM'S OFFICIAL RESPONSE TO ME, INCLUDING CUSTOMER CARE CONSULTANT AND DEALER SERVICE MANAGER WORKING THROUGH HIS DISTRICT MANAGER, WAS TO INTENTIONALLY MAKE THE VEHICLE LOSE CONTROL ON A PUBLIC ROAD. THIS SEEMS COMPLETELY IRRESPONSIBLE AND POTE

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT THE BACK SEAT CENTER SEAT BELT COVER DETACHED FROM THE TENSIONER, WHICH CAUSED THE SEAT BELT TO BECOME EXCESSIVELY LOOSE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE SEAT BELT COVER NEEDED TO BE TAPED DOWN. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 16,500.

THIS COMPLAINT IS IN REGARD TO NHTSA CAMPAIGN 16V209000 IN REGARD TO A SEATBELT RECALL ON 2014/15 GMC SIERRA. GM HAS PROPOSED 2 SOLUTIONS: ONE FOR NEW UNSOLD VEHICLES WHICH LEAVES A SEAMLESS REPAIR AND THE OTHER FOR USED VEHICLES THAT LEAVES THE SEAT VISIBLY DAMAGED. THIS VISIBLE DAMAGE HAS LED TO OWNERS NOT HAVING THEIR VEHICLES SERVICED AND OPTING OUT OF THIS RECALL. YOU CAN FIND EXAMPLES AND EVIDENCE OF THESE OWNERS HERE: HTTP://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/189628-SEAT-BELT-RECALL/ HTTP://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/190371-HAPPY-WITH-YOUR-SEATBELT-RECALL-FIX/ THE ONLY REASON THAT GM PROPOSED TO SOLUTIONS IS TO SAVE A FEW BUCKS AT THE EXPENSE OF THEIR CUSTOMERS. THIS IS NOW LEADING TO A POTENTIALLY DANGEROUS SCENARIOS FOR GMC OWNERS AND OTHERS ON THE HIGHWAY. THIS NEEDS TO BE INVESTIGATED AND GM NEEDS TO ANSWER WHY THEY PROPOSED A CHEAPER LESS EFFECTIVE SOLUTION WHICH LEAVE VISIBLE DAMAGE TO THE VEHICLE FOR CURRENT OWNERS.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT'S VISIBILITY WAS DIMINISHED BECAUSE THE LOW AND HIGH BEAM HEADLIGHTS FAILED TO FULLY ILLUMINATE. THE VEHICLE WAS TAKEN TO A DEALER ON NUMEROUS OCCASIONS WHERE THE HEAD LAMPS WERE READJUSTED AND THE LIGHT BULBS REPLACED; HOWEVER, THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 0.

HEADLIGHTS DO NOT GIVE OFF ENOUGH LIGHT. THEY DON'T LIGHT THE ROAD FAR ENOUGH AHEAD AND ARE BAD OFF TO THE SIDES. IT'S HARD TO SEE OBJECTS IN THE ROAD AND HARD TO SEE STREETS YOU ARE TURNING ON. I HAVE ALMOST HIT DEER AND HAVE MISSED TURNS ON RURAL ROADS.

I PREVIOUSLY SENT IN A COMPLIANT ON THIS MATTER SEVERAL MONTHS AGO. THE HEADLIGHTS ARE POOR. THIS IS A DANGEROUS CONDITION, THEY DO NOT PROJECT OUT SIGNIFICANTLY AND THE SIDE ILLUMINATION IS NONEXISTENT. I FOUND OUT ON MY OWN THAT THEIR IS A SERVICE BULLETIN ON THIS MATTER. I TOOK MY VEHICLE BACK TO THE DEALER, WHO CHANGED THE LIGHT BULBS, THE IMPROVEMENT IS MARGINAL AT BEST. I AM EXTREMELY CAUTIOUS IF I NEED TO DRIVE THE VEHICLE AT NIGHT. THIS IS A DANGEROUS CONDITION.

DELAYED ENGAGEMENT IN DRIVE, TRANSMISSION CLUNKS, RPM FLARES AND TRUCK QUITS MOVING UNEXPECTEDLY. SHUDDER AT 3- 50 MPH, VIBRATES STEERING WHEEL AND LEAVES AN UNEASY FEELING THE TRUCK IS GOING TO QUIT MOVING.

2015 GMC SIERRA HAS A DELAY THROTTLE RESPONSE. DOES IT AT ALL SPEEDS AND FROM TAKE OFF. TOOK TO DEALER AND SERVICE ADVISOR PULLED TRUCK IN SHOP. GOT OUT AND SAID IT DOES HAVE A DELAY. THE RAN VIN NUMBER THROUGH GMC DATA BASE AND TOLD ME. MANUFACTURE SAID IT WAS A NORMAL THING. IT'S NOT NORMAL AND NEVER HAD A VEHICLE WITH A THROTTLE DELAY.

THE HEADLIGHTS ON THESE TRUCKS ARE DIM TO THE POINT OF BEING DANGEROUS. I'VE HAD THE DEALER UPDATE PERFORMED, AND HAVE EVEN TRIED AFTERMARKET BULBS, TO NO AVAIL. I AM GOING TO HAVE TO TRADE IT IN I'M AFRAID AS I DO NOT FEEL SAFE DRIVING IT AFTER DARK. GM REALLY DROPPED THE BALL ON THIS DESIGN, AND HAVE LEFT THOUSANDS OF OWNERS "IN THE DARK".

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500 EQUIPPED WITH CONTINENTAL CROSSCONTACT LX 20 TIRES, SIZE: P275/55/R20 (NA). WHILE DRIVING 65 MPH, ALL THE TIRES VIBRATED. THE VEHICLE WAS TAKEN TO THE DEALER ON MULTIPLE OCCASIONS WHERE IT WAS DIAGNOSED THAT THE TIRES WERE SLIPPING OFF THE RIMS AND NEEDED TO BE REPLACED. THE TIRES WERE REPLACED NUMEROUS TIMES, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE TIRE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE FAILURE MILEAGE WAS 11,300 AND THE VEHICLE FAILURE MILEAGE WAS 1,100.

HEADLIGHTS ARE DANGEROUS! THEY PRODUCE A VERY NARROW STRAIGHT AHEAD LIGHT PATTERN. WE LIVE WHERE THERE ARE A LOT OF DEER AND YOU CAN'T SEE THEM ON THE SIDE OF THE ROAD. ANY CURVE IN THE ROAD AND YOU'RE BLIND TILL YOU GET AROUND IT. ON A AIMING BOARD THEY PRODUCE A NARROW VERTICAL BAND OF LIGHT, IF YOU MARK THE HORIZON YOU FIND THAT HALF THE LIGHT IS SHING UP IN THE AIR. (THEY LIGHT UP THE TOPS OF TREES REAL NICE) BECAUSE OF THE 1 BULB DESIGN IF YOU ADJUST THEM DOWN TO GET THE HIGH BEAMS ON THE HORIZON THE LOW BEAMS WILL ONLY ILLUMINATE ABOUT 20 FEET OUT. IT IS JUST NOT SAFE DRIVING THIS TRUCK IN THE COUNTRY AT NIGHT. GM TRIED A BRIGHTER BULB BUT THE IMPROVEMENT WAS VERY MINOR. THE PROBLEM IS THE LENSE AND SHUTTER DESIGN.

PURCHASED VEHICLE WITH JUST OVER 9,000 MILES ON IT. NOTICED EXCESSIVE VIBRATION AT HIGHWAY SPEEDS. AT JUST OVER 12,000 MILES DRIVESHAFT SUFFERED CATASTROPHIC FAILURE AT LOW SPEED IN A RESIDENTIAL AREA. FAILURE OCCURRED ON A WET ROAD UNDER MODERATE ACCELERATION AT AROUND 10-15 MPH. DRIVESHAFT LITERALLY RIPPED INTO TWO PIECES.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V209000 (SEAT BELTS); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

THE HEADLIGHTS ON MY 2015 GMC SIERRA ARE DANGEROUS. THEY DO NOT PRODUCE A SUFFICIENT AMOUNT OF LIGHT TO COVER THE DRIVING AREA. WHILE DRIVING AT NIGHT THE SIDES OF THE ROAD ARE NOT VISIBLE NOR ARE WHAT LIES AHEAD IF ANY CURVATURE IS INVOLVED. IT IS TO THE POINT WHERE I TRY TO AVOID DRIVING IT AT NIGHT. THE ONES WHO DO NOT COMPLAIN EITHER LIVE IN TOWN WHERE STREET LIGHTS ARE PRESENT TO ASSIST WITH LIGHTING OR THEY ARE NOT DRIVING AT NIGHT.

THE HEADLIGHTS ARE DANGEROUS! LOW BEAMS WITH FOG LIGHTS ON ARE ADEQUATE FOR <45 MPH. ANYTHING FASTER AND YOU CAN'T SEE FAR ENOUGH AHEAD. FORGET USING THE HIGH BEAMS. ON DIMLY LIT HIGHWAYS, YOU CAN'T SEE IN FRONT ON THE VEHICLE. THE HIGH BEAMS DON'T ILLUMINATE THE ROAD SO IT'S SAFER TO USE THE LOW BEAMS AND HOPE THE 100FT VISIBILITY WILL ALLOW YOU TO SLOW SLIGHTLY BEFORE KILLING WHATEVER HUMAN/ANIMAL/OBSTACLE PRESENTS ITSELF. THIS TRUCK IS TOO DANGEROUS FOR MY FAMILY WITHOUT A RETROFIT.

WHEN ACCELERATING ON AN INCLINE OR HILL OR TRYING TO PASS TRAFFIC ON THE INTERSTATE THE TRUCK HESITATES OR STUTTERS. THIS SEEMS TO HAPPEN WHEN APPLYING LIGHT ACCELERATION. IT ALMOST FEELS LIKE THE TRANSMISSION IS HAVING DIFFICULTY FINDING THE CORRECT GEAR. THIS IS APPARENT TO BOTH DRIVER AND PASSENGERS. THIS HAS OCCURRED SINCE THE TRUCK WAS NEW AND SEEMS TO BE GETTING WORSE. THE TRUCK CURRENTLY HAS 13,000 MILES.

BOUGHT A NEW 2015 SIERRA IN JAN 2016,AFTER I BOUGHT IT I DROVE FROM NEW BRUNSWICK TO MANITOBA AND IT WAS THE SCARIEST NIGHT DRIVE I HAVE EVER HAD (OVER 30 YEARS OF EXPERIENCE )THE LOW BEAMS WERE DIM AND HAD NO USEFUL LIGHT PATTERN, AND HIGH BEAM JUST LIT UP THE TOPS OF TREES AND SIGNS, DRIVING THROUGH ONTARIO'S TWISTY HWY.I ALMOST WENT OFF THE ROAD MANY TIMES ,DUE TO THE POOR LIGHTS YOU WILL CORNER WITH OUT BEING ABLE TO SEE TILL YOUR STRAIGHT AND THE LIGHT HITS THE ROAD AGAIN. WHEN I ARRIVED IN MANITOBA I TOOK THE TRUCK TO A DEALERSHIP ,WHERE THEY REPLACED MY BULBS ,FLASHED THE BCM AND A LINED THE LIGHTS THE LIGHT IS A LITTLE BETTER BUT STILL NOT SAFE AS THEY STILL DON'T PROJECT MUCH LIGHT PATTERN. I CAN'T SEE STREET SIGNS ONLY THE BOTTOM OF THE POLES. AND HIGHS STILL POINT TO THE SKY WITH NO MORE ROAD LIGHT. RETURNED TO NEW BRUNSWICK AND BROUGHT IT TO THE DEALERSHIP TO HAVE IT LOOKED AT AGAIN,AND THE SUGGEST THE SAME FIX AS WHAT THE MANITOBA DEALER JUST DID. STILL CANNOT DRIVE SAFE AT NIGHT.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT THE HEADLIGHTS PROVIDED POOR ILLUMINATION AND OBSCURED HIS VISION. THE VEHICLE WAS TAKEN TO THE DEALER AND THE HEADLIGHT HALOGEN BULBS WERE REPLACED, BUT THE VISIBILITY HAD NOT IMPROVED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 4,500.

HEADLIGHTS ARE SO DIM THAT I CAN'T SEE DOWN THE ROAD FAR ENOUGH TO SEE IF THERE WOULD BE ANYTHING IN THE ROAD. HAVE REPEATEDLY ASKED DEALER ABOUT THIS, AND WAS TOLD THEY WERE AWARE OF THE PROBLEM BUT THERE WAS NO PLAN TO FIX IT. ON RAINY NIGHTS IT'S AS IF I HAVE NO HEADLIGHTS AT ALL.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT AN UNKNOWN SPEED, ONE OF THE HEADLIGHTS FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE VEHICLE WAS REPAIRED UNDER A MANUFACTURER WARRANTY PROGRAM, HOWEVER THE FAILURE RECURRED. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 19,000. UPDATED 08/02/16*LJ

REAR SEAT HEADRESTS TOO LOW TO BE SAFE AND EFFECTIVE IN CRASH. THEY ARE BOTH TOO SMALL AND TO NOT STAY LOCKED IN THE FAR UP POSITION. VEHICLE HAS BEEN TO THE DEALERSHIP MULTIPLE TIMES FOR ISSUE TO BE REVIEWED. AT THIS TIME DEALERSHIP CLAIMS HEADREST FUNCTION IS NORMAL.

HEADLIGHT ILLUMINATION EXTREMELY POOR. EVEN AFTER TSB BULB REPLACEMENT WAS COMPLETED ON VEHICLE, LOW AND HIGH BEAM ILLUMINATION IS UNSAFE AND UNACCEPTABLE.

CAN'T SEE AT NITE AND WORSE DURING RAIN. IT'S LIKE A 5 CELL FLASH LITE SET ON THE SMALL NARROW SETTING STEAD OF THE FLOOD SETTING. ALSO CAN'T SEE WILD LIFE THAT ARE STANDING NEAR THE WHITE LINE OF THE SHOULDERS AT NITE. TUNNEL VISION LIGHT. VERY DANGEROUS, PLEASE FIND A CURE. ALREADY HAD GMC'S UPGRADED BULBS.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT 2 MPH, THE STEERING WHEEL FRACTURED FROM THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO A CONCRETE POST AND THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED LEFT HAND INJURIES THAT DID NOT REQUIRE MEDICAL ATTENTION. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED AWAY FROM THE CRASH SCENE TO A DEALER WHO DIAGNOSED THAT THE CONNECTION POINT AT STEERING WHEEL COLUMN NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 25 MPH, THE ELECTRICAL FUNCTIONS FOR THE DRIVER SEAT FAILED AND ALLOWED THE SEAT TO MOVE FORWARD. THE FAILURE CAUSED THE CONTACT TO BECOME WEDGED BETWEEN THE STEERING WHEEL AND THE SEAT. THE FAILURE OCCURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER AND REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 3,200.

I HAVE DRIVEN MANY VEHICLES IN MY LIFETIME AND THESE ARE THE WORST HEADLIGHTS I HAVE EXPERIENCED. A VERY SHORT CUTOFF AND WORST OF ALL, NO SIDE ILLUMINATION. I AM ALMOST AFRAID TO DRIVE IT AT NIGHT AND GOD HELP YOU IF IT IS NIGHT AND RAINING.

DESIGN FLAW IN CABIN AIR FILTRATION SYSTEM LEADING TO HEALTH HAZARD WITHIN THE VEHICLE. ON TWO OCCASIONS IN MY FIRST 16 MONTHS OF OWNERSHIP, MICE HAVE ENTERED THE COWL AIR PLENUM AREA AND BUILT NESTS ON TOP OF AND OUT OF THE CABIN AIR FILTER MATERIAL. BOTH TIMES THE FILTER HAS BECOME SATURATED WITH MOUSE DANDER, FECES AND OTHER MATERIALS. EVENTUALLY THESE CONTAMINANTS WORK THEIR WAY THROUGH THE FILTER AND AN ODOR IS NOTICED INSIDE THE VEHICLE. THE MICE ARE BELIEVED TO ENTER THIS AREA THROUGH SIGNIFICANT UNSCREENED OPENINGS AT THE ENDS OF A PLASTIC COVER OVER THE PLENUM IN THE WINDSHIELD WIPER AREA UNDER THE HOOD. I HAVE CONTACTED GM WITH REGARD TO THIS DESIGN FLAW. THEIR ONLY RESPONSE WAS TO ESTABLISH THEIR CASE NUMBER 711507394608. NO FURTHER ACTION WAS TAKEN. SO FAR, MY DEALER HAS CONTINUED TO REPAIR THE DAMAGE AND INSTALL NEW CABIN FILTERS. NO ATTEMPT HAS BEEN MADE TO BLOCK OR SCREEN THE OPENINGS. THE TRUCK IS REGULARLY GARAGED WITH TWO OTHER NON-GM VEHICLES THAT DO NOT HAVE THIS PROBLEM. INDIVIDUALS WITH RESPIRATORY CONDITIONS SHOULD BE CONCERNED ABOUT THE SIGNIFICANT PLENUM DESIGN FLAW IN THESE GM TRUCKS.

HEADLIGHTS ON THIS VEHICLE ARE UNACCEPTABLE YOU CANNOT SEE ANYTHING PAST 100 FEET AT 35 MPH ON A DARK STREET. THIS IS A KNOWN PROBLEM WITH THE SIERRA.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 60 MPH, THE VEHICLE BEGAN TO DECELERATE AND THE ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT A GEAR CYLINDER FRACTURED. THE VEHICLE WAS REPAIRED, BUT WAS UNABLE TO BE DRIVEN. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 4,000.

MY 2015 GMC SIERRA HAS DANGEROUS HEADLIGHTS, THEY DO NOT BEAM MORE THAN 30 FEET AHEAD AND THEY ARE VERY DIM.

ISSUE: HEADLIGHTS DO NOT PROVIDE SUFFICIENT LIGHT FOR NIGHT DRIVING. UNLESS DRIVING IN A WELL LIT NEIGHBORHOOD, THESE HEADLIGHTS DO NOT PROVIDE SAFE LIGHTING FOR DRIVING. I CAN NOT DRIVE THIS VEHICLE AT NIGHT. THE WARRANTY ONLY PROVIDED DIFFERENT LIGHT BULBS WHICH ARE NO BETTER. THESE HEADLIGHTS NEED RECALLED IMMEDIATELY!

VEHICLE IS LESS THAN 2 MONTHS OLD. I WAS GOING DOWN HIGHWAY AT APPROX. 65 MILES PER HOUR AND A HUGE CRACK OCCURRED IN THE WINDSHIELD FROM THE TOP DRIVERS SIDE CORNER TO BOTTOM OF THE WINDSHIELD NEAR THE CENTER OF THE CAR. NOTHING IMPACTED THE WINDSHIELD, IT JUST CRACKED.

THE HEADLIGHTS EQUIPPED FROM THE FACTORY ON THESE VERY EXPENSIVE TRUCKS ARE DANGEROUS. WHEN DRIVING IN CONDITIONS OF LOW LIGHT, THERE IS SUCH LITTLE ILLUMINATION FROM THE HEADLIGHTS THAT IT WOULD BE DIFFICULT IF NOT IMPOSSIBLE TO AVOID A COLLISION DUE TO MINIMAL REACTION TIME. BOTH THE HIGH AND LOW BEAM DO NOT PROVIDE SUFFICIENT LIGHTING FOR DIVING SAFELY IN LOW LIGHT CONDITIONS. THESE ARE THE MOST POORLY PERFORMING LIGHTS I CAN REMEMBER EVER HAVING FROM ANY MANUFACTURER.

THE ILLUMINATION PERFORMANCE OF THE HEADLIGHTS ON MY 2015 GMC SIERRA IS UNSATISFACTORY FOR DRIVING ON RURAL ROADS. THE PERFORMANCE IS ALSO SUBPAR IN FOGGY AND WET CONDITIONS. I FEEL THAT I AM UNABLE TO DRIVE SAFELY AT THE POSTED HIGHWAY SPEEDS USING THE CURRENT HEADLIGHTS PROVIDED BY THE AUTOMAKER. I FEEL THAT IT IS A SAFETY HAZARD AND COULD POSSIBLY CONTRIBUTE TO HAZARDOUS DRIVING SITUATIONS AT NIGHT. I ALSO FEEL THAT IT COULD CAUSE A POTENTIAL ACCIDENT DUE TO THE POOR VISIBILITY AT POSTED HIGHWAY SPEEDS.

BROUGHT IN MY 2015 GMC 1500 SIERRA TRUCK IN FOR VIBRATIONS ISSUES AT HIGH SPEED OF 70-75 MPH. AFTER 4 ATTEMPTS GMC CORP REFUSES TO ADMIT THAT THERE IS A SAFETY ISSUES IN DRIVING THIS VEHICLE AT A NORMAL RATE. THEY CONTINUE TO REMOVE AND REPLACE THE TIRES. I HAVE NEVER OWNED A VEHICLE BEFORE THAT SUCH VIBRATION IS FELT IN THE CABIN OF THE TRUCK, PASSENGER SEAT, FOOT PETAL, ETC.THAT IS SO UNCOMFORTABLE, THAT MY WIFE REFUSE TO DRIVE IN THE TRUCK DUE TO ITS SAFETY. GMC WILL NOT ACKNOWLEDGE ANY OF THESE COMPLAINTS BUT WILL SAY EVERYTHING IS OF SPECS. LIKE OTHERS THIS IS THE WORSE VEHICLE I HAVE EVER PURCHASED. FOUND MORE COMPLAINTS LIKE THIS HAS BEEN FILED, BUT SAME RESULT, GMC WILL DO NOTHING.

HEADLIGHTS ARE TERRIBLE,OUTPUT AND PATTERN ARE POOR,VERY LITTLE LATERAL ILLUMINATION.UNSAFE TO DRIVE AT NIGHT IN RURAL AREA.DRIVING IN RAIN,VERY DANGEROUS.GET EYE STRAIN AND HEADACHE.

TRUCK STARTS TO VIBRATE AT 60 MPH AND GETS WORSE THE FASTER YOU GO.

THE HEADLIGHTS ON THIS TRUCK ARE SO POOR, WE HATE DRIVING IT AT NIGHT! I HAVE TAKEN IT TO THE DEALERSHIP, AND THEY DID AN "UPGRADE" OF DIFFERENT BULBS AND CHANGED THE VOLTAGE. THIS WAS OF LITTLE HELP. NOW, ONE OF THE UPGRADED BULBS HAS ALREADY GONE OUT OF MY LESS THAN ONE YEAR OLD TRUCK.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH, THERE WAS AN ABNORMAL VIBRATION IN THE CABIN OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE REAR SUSPENSION NEEDED TO BE REPLACED AND THE TIRE NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 4,200. THE VIN WAS NOT AVAILABLE.

PROJECTOR-STYLE HEADLAMPS ON 2015 GMC SIERRA PROVIDE INADEQUATE ILLUMINATION-EVEN AFTER MANUFACTURER SERVICE BULLETIN WAS PERFORMED, STILL VERY UNSAFE TO DRIVE AT NIGHT IN AREA WITH NO STREET LIGHTS-LITERALLY NO SIDE ILLUMINATION, AND DISTANCE IN FRONT OF VEHICLE IS NOT ILLUMINATED ADEQUATELY. GMC (GM) CHANGED HEADLAMP DESIGN IN 2016 TO CORRECT THIS, BUT HAS OFFERED NO ASSISTANCE TO OWNERS OF 2014-15 VEHICLES. I'VE HAD SEVERAL CLOSE CALLS WITH DEER AT NIGHT DUE TO SUCH POOR LIGHTING. MY PREVIOUS, 10 YR. OLD TRUCK HAD BETTER HEADLIGHTS! HOPEFULLY SOMETHING CAN BE DONE TO CORRECT THIS ISSUE. COMPLAINED TO DEALER, TO GMC CUSTOMER SERVICE, NOW WHAT? SEEMS THE MANUFACTURER HAS NO PLANS TO HELP. HEADLAMP DESIGN WAS POOR, ONLY USES A SINGLE HALOGEN BULB FOR HIGH & LOW BEAM.

THE PERFORMANCE OF THE GMC HEADLIGHTS SEEMS TO BE WAY BELOW PAR. THIS TRUCK HAS THE WORST HEADLIGHTS I HAVE EVER OWNED. IN MY OPINION THIS IS A SAFETY HAZARD TO MYSELF AND THE PUBLIC.

MY 2015 GMC SIERRA'S HEADLIGHTS PROVIDE HORRIBLE VISIBILITY AT NIGHT, THE OEM PROJECTOR STYLE HEADLIGHTS INSTALLED IN THIS TRUCK ARE DIM, WEAK AND UNSAFE. I BROUGHT MY SIERRA BACK TO THE DEALERSHIP AND THEY APPLIED TSB #PIT5374 AND UPGRADED THE HEADLIGHTS WITH THE VOLSA HIR BULBS. THIS UPGRADE PROVIDED A NOMINAL INCREASE IN BRIGHTNESS, BUT THE HEADLIGHTS ARE STILL DIM AND UNSAFE FOR USE WHILE DRIVING ON DARK ROADS OR IN THE RAIN. THE DO NOT PROVIDE ANY ILLUMINATION ON THE SIDE OF THE ROADS, ESPECIALLY ON DARK COUNTRY ROADS WHICH MAKES IT HARD TO SEE WILDLIFE AND OTHER POTENTIAL HAZARDS. THE DESIGN OF THE HEADLIGHTS ON THE 2014/2015 GMC SIERRA ARE SEVERELY DEFICIENT. IT IS MY UNDERSTANDING THAT GMC IS FULLY AWARE OF THIS PROBLEM, SO MUCH SO THAT THEY REDESIGNED THE HEADLIGHTS ON THE 2016 GMC SIERRA WHICH HAS THE SIGNIFICANTLY BETTER HID HEADLIGHTS. I HAVE ALREADY LOGGED A COMPLAINT AND SPOKE WITH REPRESENTATIVES FROM GMC WHO LOOKED INTO MY ISSUE AND THE END RESULT WAS THAT THERE WAS NOTHING ELSE THEY COULD DO.

THE HEAD LIGHTS ARE INADEQUATE FOR NIGHT DRIVING. BOTH LOW AND HIGH BEAMS DO NOT LIGHT UP ENOUGH AREA IN FRONT OF THE VEHICLE NEARLY AS GOOD AS PREVIOUS MODEL YEARS. THE PROJECTOR STYLE LIGHTS ARE TOO FOCUSED AND DO NOT GIVE ENOUGH LIGHT TO THE SIDES TO SEE ADEQUATELY DOWN THE ROAD. GM IS OBVIOUSLY AWARE OF THE ISSUE AND PERFORMED A BCM UPDATE TO MY VEHICLE TO MAKE THE LIGHTS BRIGHTER BUT THAT FIX STILL DOESN'T RESOLVE THE ISSUE. 2016 MODEL YEARS HAVE A COMPLETELY DIFFERENT HEADLIGHT ALLOWING THOSE TRUCKS TO SEE MUCH BETTER AT NIGHT WHICH TELLS ME THEY ARE AWARE OF THE LIGHTING ISSUES AND FIXED IT FOR THE 2016 GM TRUCKS.